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Drupal example source code file (system.js)

This example Drupal source code file (system.js) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

PHP - Drupal tags/keywords

attr, class, clean-url, description, div, function, hide, php, sourceid, span, targetids, testing, url, var

The system.js Drupal example source code

// $Id: system.js,v 1.14.2.2 2009/07/21 08:59:12 goba Exp $

/**
 * Internal function to check using Ajax if clean URLs can be enabled on the
 * settings page.
 *
 * This function is not used to verify whether or not clean URLs
 * are currently enabled.
 */
Drupal.behaviors.cleanURLsSettingsCheck = function(context) {
  // This behavior attaches by ID, so is only valid once on a page.
  // Also skip if we are on an install page, as Drupal.cleanURLsInstallCheck will handle
  // the processing.
  if ($("#clean-url.clean-url-processed, #clean-url.install").size()) {
    return;
  }
  var url = Drupal.settings.basePath +"admin/settings/clean-urls/check";
  $("#clean-url .description span").html('<div id="testing">'+ Drupal.t('Testing clean URLs...') +"</div>");
  $("#clean-url p").hide();
  $.ajax({
    url: location.protocol +"//"+ location.host + url,
    dataType: 'json',
    success: function () {
      // Check was successful.
      $("#clean-url input.form-radio").attr("disabled", false);
      $("#clean-url .description span").append('<div class="ok">'+ Drupal.t('Your server has been successfully tested to support this feature.') +"</div>");
      $("#testing").hide();
    },
    error: function() {
      // Check failed.
      $("#clean-url .description span").append('<div class="warning">'+ Drupal.t('Your system configuration does not currently support this feature. The <a href="http://drupal.org/node/15365">handbook page on Clean URLs</a> has additional troubleshooting information.') +"</div>");
      $("#testing").hide();
    }
  });
  $("#clean-url").addClass('clean-url-processed');
};

/**
 * Internal function to check using Ajax if clean URLs can be enabled on the
 * install page.
 *
 * This function is not used to verify whether or not clean URLs
 * are currently enabled.
 */
Drupal.cleanURLsInstallCheck = function() {
  var url = location.protocol +"//"+ location.host + Drupal.settings.basePath +"admin/settings/clean-urls/check";
  $("#clean-url .description").append('<span><div id="testing">'+ Drupal.settings.cleanURL.testing +"</div></span>");
  $("#clean-url.install").css("display", "block");
  $.ajax({
    url: url,
    dataType: 'json',
    success: function () {
      // Check was successful.
      $("#clean-url input.form-radio").attr("disabled", false);
      $("#clean-url input.form-radio").attr("checked", 1);
      $("#clean-url .description span").append('<div class="ok">'+ Drupal.settings.cleanURL.success +"</div>");
      $("#testing").hide();
    },
    error: function() {
      // Check failed.
      $("#clean-url .description span").append('<div class="warning">'+ Drupal.settings.cleanURL.failure +"</div>");
      $("#testing").hide();
    }
  });
  $("#clean-url").addClass('clean-url-processed');
};

/**
 * When a field is filled out, apply its value to other fields that will likely
 * use the same value. In the installer this is used to populate the
 * administrator e-mail address with the same value as the site e-mail address.
 */
Drupal.behaviors.copyFieldValue = function (context) {
  for (var sourceId in Drupal.settings.copyFieldValue) {
    // Get the list of target fields.
    targetIds = Drupal.settings.copyFieldValue[sourceId];
    if (!$('#'+ sourceId + '.copy-field-values-processed').size(), context) {
      // Add the behavior to update target fields on blur of the primary field.
      sourceField = $('#' + sourceId);
      sourceField.bind('blur', function() {
        for (var delta in targetIds) {
          var targetField = $('#'+ targetIds[delta]);
          if (targetField.val() == '') {
            targetField.val(this.value);
          }
        }
      });
      sourceField.addClass('copy-field-values-processed');
    }
  }
};

/**
 * Show/hide custom format sections on the date-time settings page.
 */
Drupal.behaviors.dateTime = function(context) {
  // Show/hide custom format depending on the select's value.
  $('select.date-format:not(.date-time-processed)', context).change(function() {
    $(this).addClass('date-time-processed').parents("div.date-container").children("div.custom-container")[$(this).val() == "custom" ? "show" : "hide"]();
  });

  // Attach keyup handler to custom format inputs.
  $('input.custom-format:not(.date-time-processed)', context).addClass('date-time-processed').keyup(function() {
    var input = $(this);
    var url = Drupal.settings.dateTime.lookup +(Drupal.settings.dateTime.lookup.match(/\?q=/) ? "&format=" : "?format=") + encodeURIComponent(input.val());
    $.getJSON(url, function(data) {
      $("div.description span", input.parent()).html(data);
    });
  });

  // Trigger the event handler to show the form input if necessary.
  $('select.date-format', context).trigger('change');
};

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